EP 0122052 B1 19880302 - ARC TUBE FABRICATION PROCESS
Title (en)
ARC TUBE FABRICATION PROCESS
Publication
Application
Priority
US 47389683 A 19830310
Abstract (en)
[origin: EP0122052A1] A process for fabricating arc tubes for the manufacture of unsaturated vapor high pressure sodium lamps wherein a first electrode (41) is sealed into one end (37) of a ceramic envelope (35), a sodium-mercury amalgam and an oxygen-absorbing getter are introduced into the ceramic envelope (35), the ceramic envelope is flushed and then filled with a rare gas, and a second electrode (53) is sealed into the other end (39) of the ceramic envelope (35) to provide an arc tube wherein decomposition of the amalgam and absorption of oxygen occurs within the ceramic envelope during operational use.
IPC 1-7
IPC 8 full level
H01J 9/39 (2006.01); H01J 9/38 (2006.01); H01J 9/395 (2006.01); H01J 9/40 (2006.01)
CPC (source: EP)
H01J 9/38 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0122052 A1 19841017; EP 0122052 B1 19880302; AU 2547284 A 19840913; AU 578601 B2 19881103; CA 1246136 A 19881206; DE 3469638 D1 19880407; JP S59169037 A 19840922
DOCDB simple family (application)
EP 84301615 A 19840309; AU 2547284 A 19840309; CA 448954 A 19840306; DE 3469638 T 19840309; JP 4415784 A 19840309